Thanks for your reply

I have tried custom made orthotics. They haven't helped. I wore them for 6 months to start but no changes just additional pain in feet.

Left leg was measured at 8mm off xray but I don't think this is very accurate. I think difference varies with the stiffness in joints and the methods of measurement. Recently a physio measured difference at 45mm - whch seams outrageous.

Hope this helps

Jack